Khloe Kardashian: "I Never Look Good Enough"

Khloe Kardashian often makes self-deprecating comments about her body (disguised as humor), but now, she is admitting she is not 100% comfortable in her own skin.

"My weight is always going up and down. I'm always fighting that," the reality star revealed during a video blog Monday. "I feel like no matter what I do, I never look good enough to everybody else."

Khloe, who is 5'10", says it's taken some time to get somewhat comfortable with her Rubenesque figure, but adds that she's bothered by what some of the critics say.

"That's been a struggle that I think I've gotten a hold of, not caring what other people think," she said. "But as much as I say that, other people's words eventually come and do hit you hard."

The press has been reporting that Khloe is pregnant since last summer (she even joked "I'm not pregnant, I'm fat"). But as of this writing, her reps won't confirm it. Chances are, her weight is simply fluctuating like everyone's does.

Though she and the Sisters K preach in their book Kardashian Konfidential that women should be happy with their bodies no matter their size, Khloe says maintaining her weight is the struggle of a lifetime.

"I think my weight is my biggest lifetime struggle," she said. "It's not the biggest thing in life, but it does get you down sometimes."